TROTTERS boss Sam Allardyce is worried Bolton's success last season could prove to be their undoing this term.

Bolton claimed a UEFA Cup spot after finishing sixth in the Barclays Premiership in 2004/05 and yesterday's 2-1 win at West Ham - Wanderers' second in four days - took them to third in the table after four matches.

The Lancastrians also have a UEFA Cup tie against Lokomotiv Plovdiv to look forward to on September 29 - but their manager Allardyce is concerned the number of fixtures may weaken his team.

Allardyce said: "The players gave a magnificent effort for the team yesterday - but it was a concern seeing how tired they were after the game.

"They were tired because of the energy they had used last Wednesday.

"We're going to have to face that situation week in and week out if we get into the group stages of the UEFA Cup.

"I'm worried that we'd come across a better side than West Ham on a Sunday after we'd played on a Thursday and lose the game because of the fatigue.

"But we have the talent to be a top-half team if we stay fit and play like we did at West Ham."